Re: unfair scheduling with tbb application observed, could it be a kernel issue?

I didn't enable cgroups explicitly, and don't have userspace tools for that installed. Thanks. Pedro. On Mon, Aug 6, 2012 at 4:25 PM, Mike Galbraith wrote: > On Mon, 2012-08-06 at 16:04 +0200, Pedro Larroy wrote: >> Hi >> >> I think we are observing unfair scheduling

unfair scheduling with tbb application observed, could it be a kernel issue?

Hi I think we are observing unfair scheduling of processes that use intel TBB thread scheduler, as we have several processes with nice of 19 and ioniced idle, and somehow the process with nice 0 should be getting more than 1000% cpu Any ideas? Kernel is 3.0.0.-17-generic on unbutu 11.10.

unfair scheduling with tbb application observed, could it be a kernel issue?

Hi I think we are observing unfair scheduling of processes that use intel TBB thread scheduler, as we have several processes with nice of 19 and ioniced idle, and somehow the process with nice 0 should be getting more than 1000% cpu Any ideas? Kernel is 3.0.0.-17-generic on unbutu 11.10.

Re: unfair scheduling with tbb application observed, could it be a kernel issue?

I didn't enable cgroups explicitly, and don't have userspace tools for that installed. Thanks. Pedro. On Mon, Aug 6, 2012 at 4:25 PM, Mike Galbraith efa...@gmx.de wrote: On Mon, 2012-08-06 at 16:04 +0200, Pedro Larroy wrote: Hi I think we are observing unfair scheduling of processes

Call to atention about using hash functions as content indexers (SCM saga)

integrity, and that's the reason of the "avalanche effect", so even single bit errors are propagated and it's effect is very noticeable at the output. Regards. -- Pedro Larroy Tovar | Linux & Network consultant | pedro%larroy.com Make debian mirrors with debian-multimirror: http:/

Call to atention about using hash functions as content indexers (SCM saga)

, and that's the reason of the avalanche effect, so even single bit errors are propagated and it's effect is very noticeable at the output. Regards. -- Pedro Larroy Tovar | Linux Network consultant | pedro%larroy.com Make debian mirrors with debian-multimirror: http://pedro.larroy.com/deb_mm

Re: Vanilla kernel >=2.4.28-rc2 incompatibility with ADSL modem Dlink DSL-G300+

adsl routers. Took a while to discover that since the connection misteriously ceased to work from some boxes after some time transmitting data ok. Looks like some manufacturers such as efficient networks adsl routers, doesn't follow the standards. I'd suggest running tcpdump and doing some observa

Re: Vanilla kernel =2.4.28-rc2 incompatibility with ADSL modem Dlink DSL-G300+

observation. -- Pedro Larroy Tovar | Linux Network consultant | pedro%larroy.com Make debian mirrors with debian-multimirror: http://pedro.larroy.com/deb_mm/ * Las patentes de programación son nocivas para la innovación * http://proinnova.hispalinux.es